Band-cutter and feeder for threshing-machines



I. KIRBY. BAND CUTTER AND FEEDER FOR THRESHING MACHINES.

APPLICATION FILED SEPT-30,19I8. 1,388,468. Patented Aug. 23,1921

2 SHEETS-SHEET L IEl INVENTOR l. KEIRBY.

BAND CUTTER AND FEEDER FOR THRESHING MACHINES.

APPLICATION FILED SEPT. 30, 1918.

1 88,468, Patented Aug. 23, 1921.

2 SHEETS-SHEET Z.

Jamar/27 g Qu et we UNITED STATES PATENT OFFICE.

ISAAC KIRBY, OKLAHOMA, OKLAHOMA.

Specification of Letters Batent. Patented All". 23, 1921 Application filed September 30, 1918. Serial No. 256,251.

To all whom it may concern Be it known that I, ISAAC I{1RBY,\, citizen of the United States, and a resident of the city, county, and State of Oklahoma, have invented new and useful Improvements in Band-Cutters and Feeders for Threshing- Machines, of which the following is a specification, reference also being had to the drawingsaccompanying and forming part of the same.

This invention relates to a feeder and band cutter for threshing machines, and consists in novel features productive of beneficial results in practice.

It is an object of the invention to provide for the expansion of cut bundles preparatory to disintegration, resulting in efiicient distribution, lessening the resistance to the power and elements, and giving other re suits to be seen from a full reading of the specification.

It will be noted that only so much of the machine which per se is old in the art, as is necessary to make a workable structure, is shown and with which is associated the novel features of the invention,

Figure 1 is a side elevation of device incorporating the essentials of the invention,

Fig. 2 is a detail and perhaps diagrammatic view of the crank system, cutters, and feeders.

Fig. 3 is a perspective View of the crank shaft, the position of the bars being indicated by dotted lines.

In these views similar characters ofreference indicate similar parts.

1 is the frame of any suitable size, shape and may be made of any kind of material. 2 is the usual cylinder or may represent any sort of separator, and is associated with power 3 from a suitable source and carried to one of the shafts 1 1 by belt 4:. 5 repre' sents the concave, and 6 represents the gear to be associated with a governor not shown.

Running over two rollers 7 and 8 respec tively is a conveyor 9 with cleats 10. There is essentially nothing novel in the construction so far, and it may be varied to suit, at will.

Upon an'adjustable standard 11 is a bearing, 12, it being understood the standard and bearing will be duplicated, and in these bearings is a shaft 14. bent upon itself angularly to form ofisets 15, 16, 17 and 18 in the order named, preferably, although they may be made in any suitable manner, each offset by the having boxes 19, 20, 21, and 22. At a suitable distance from the bearing 12, and in boxing 22 this arrangement is duplicated, z'. c; a shaft with offsets 23, 24, 25 and 26 c0rresponding to 15, 16, 17 and 1S and boxings 27, 28, 29 and 30 corresponding to 19, 20, 21 i and 22.

Under boxing 27 and over boxing 19 a knife bar 31 is fastened, under boxings 28 and over 22, a knife bar 32 is applied, under boxing 29 and over 21 a knife bar 33; under 30 and over 20 a knife bar 34 is applied, and each of the bars 31, 32, 33 and 34: are provided with knives 35.

Under the boxings 19, 20, 21 and 22 are applied curved arms 36 each provided with knives 37. As the bundles are carried upwardly they are engaged by the arms 36 and drawn to position by said arms and the conveyer under the bars. During this movement of the arms the knives 85 will cut the ties on thebundles and this cutting operation will take place just as the bundles come to position under the bars. The bundles will promptly expand when out and such expansion will be into the space under the knife bars and in front of the steps formed boxes, 19, 20, 21 and 22. The bundles thus expanded will spread out under the bars so that the knives on the bars will feed the material to the cylinder without chocking the machine.

"Itis noticed that power is directly applied to shafts 14 being transmitted from one to the other through the knife bars, providing by this means against lost motion through chains, and various connections in the art that lose motions, wear, and readily get out of order. The action here is direct, positive and the power direct is positively communicated also in the cutting process.

In connection, with this feature of the invention, also, it is to be noted that the governor gear 6 (dotted in, in Fig. 1) gives direct control in this system.

It will now be observed that the essential part of this invention resides in the provision of means whereby the liberated bundle given over to expansion having been out, will separate into an expansion pocket and under greater relief be properly and efiiciently disintegrated before passing to the cylinder. It will also be observed that the feeders, disintegrators and multiple shafts will be operated in unison from a given point of 1 1 cave. As a result of this particular action it unnecessary to provide the usual retarding means and; the machine willoperate successfully without choking. By having the parts so arranged that the material Will be directed against'theupper portion of the cylinder'the teeth on the cylinder whichare movingoppositely to the directionof movement of material 'will act to strip the grain quickly and efi'ectivel 1 V 7 Importance is attached to the fact that the i spaced longitudinal-bars 31, 32, 33 and 34 inderrand that the offset portions o have their rear ends abovevthe threshing cylthe 14 are so disposed with relation to the bars that they constitute difl'erential sup-v porting reeans at'each end of each of t e bars "whereby thei'rear end of eachbar is caused to swing downwardlxtand the forother bar. As a result of ward end of each bar'to swing upwardly portions causing each bar tobe swung difi'erentially from the this arrangement the bars operate successively to engage and V thrust, the *inaterial longitudinally to mition: above the threshing cylinder an the said material .is prevented from hanging on the knives 35 on the bars."v Furthermore thismotion imparted to the bars results in the-proper actuation of the. curved arms 36 and their knives 37 7 so that they will cutthe I ties on the bundles. I

Having thus described claim r l. The combination with a threshing c 1- this invention I 711M161 and a conveyer extending upwar y 1point above the cylinder 2 the teeth of r towardt-he cylinder, of spaced crank shafts, located over the conveyer and adjacent the cylinder respectively, bearing boxes mounted on the shafts, a bar secured at one end to the top of a bearing box on the shaft above the conveyer and at its other end to the bottom of the bearing box on the other shaft, knives extending downwardly from the bar and means above'the conveyer and connected with said bar for cutting bundles as they are brought successively to the upper end of the conveyer and under the bar.

2. The combination with a threshing cylinder and concave, of means for conveying bundles over the concave and-onto the upper portion of the cylinder in a direction o p0- site to that in which the upper portion 0 the cylinder is moving, spaced crank shafts, feeding bars carried at or near their ends by the shafts, one end of each bar overhanging the conveyer, said end of the bar being mounted on and above the crank shaft on which it is mounted, thereby to form an expansion pocket under the bar, and band cutting means extending from said end of the bar at the lower end of the pocket and overhangingthe conveyer.

3. The combination with threshi mechanism of feeding mechanism there or comprising a lower supporting and conveyi means feeding the grain against the top 2% the threshing mechanism and an upper band cutting and conveying mechanism com rising a plurality of spaced longitudinal rs having their rear ends above the threshing cylinder; and difierential supporting means at eachend of each of said bars so disposed as to cause the rear end of each bar to swin downwardly and the forward end of each bar to be swung upwardly in unison and said supporting means being forme to cause each bar to be swung differentially from the other bar.

Signed at Oklahoma in the count 'and State of Oklahoma, this 25th day 0 September, in the year of our Lord, nineteen hundred and eighteen.

. ISAAC KIRBY. 

